Windtree Therapeutics, Inc.
Windtree Therapeutics, Inc. (WINT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WINT · as of Jun 30, 2025
Ownership Breakdown
5
Institutional Holders
$8,752
Total Inst. Value
▼ $48,282 vs Q1
33.71M
Shares Outstanding
freeFloat 100.00%
16,960
13F Shares Held
▼ 28,305 vs Q1
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WINT largest shareholders · institutional ownership
Q2 2025 · SEC 13F
Showing top 6 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
JANE STREET GROUP, LLC biological products, (no diagnostic substances) | 14.6K | 134.12% | 134.12% | $7.53M | Aug 14, 2025 | NEW |
TOWER RESEARCH CAPITAL LLC (TRC) biological products, (no diagnostic substances) | 2.2K | 20.32% | 20.32% | $1.14M | Aug 15, 2025 | ▲ 836 |
BANK OF AMERICA CORP /DE/ biological products, (no diagnostic substances) | 103 | 94.63% | 94.63% | $53,000 | Aug 14, 2025 | ▲ 3 |
SBI SECURITIES CO., LTD. biological products, (no diagnostic substances) | 24 | 22.05% | 22.05% | $12,000 | Aug 8, 2025 | — held |
UBS GROUP AG biological products, (no diagnostic substances) | 22 | 20.21% | 20.21% | $11,000 | Aug 14, 2025 | ▼ 28.7K |
MORGAN STANLEY biological products, (no diagnostic substances) | 0 | 0.00% | 0.00% | $0 | Aug 15, 2025 | EXIT |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q2 2025 vs prior quarter
Q2 2025
2
Increased
+839 shares1
New Positions
first time holders1
Decreased
−28.7K shares1
Sold Out
fully exitedNet shares change (top 50)
27.9K
+839 / −28.7K
Net new holders
+1
1 new / 1 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WINT insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Fraser Craig President and CEO | Oct 8, 2024 | Purchase | 5,431 | $0.91 | $4.9K | 8.6K | Form 4 ↗ |
Simonson Steven SVP, Chief Medical Officer | Jul 22, 2024 | Award | 2,674 | $4.11 | $11.0K | 2.7K | Form 4 ↗ |
Simonson Steven SVP, Chief Medical Officer | Jul 22, 2024 | Award | 13 | — | — | 13 | Form 4 ↗ |
Fraser Craig President and CEO | Jul 22, 2024 | Award | 4,011 | $4.11 | $16.5K | 4.0K | Form 4 ↗ |
Fraser Craig President and CEO | Jul 22, 2024 | Award | 19 | — | — | 19 | Form 4 ↗ |
Fraser Craig President and CEO | Sep 27, 2023 | Purchase | 2,500 | $1.02 | $2.5K | 57.9K | Form 4 ↗ |
Fraser Craig President and CEO | Sep 26, 2023 | Purchase | 2,500 | $0.90 | $2.3K | 55.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Windtree Therapeutics, Inc. (WINT) is primarily owned by institutional investors, who hold approximately 0.1% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 99.95%.
The largest institutional shareholder of Windtree Therapeutics, Inc. is JANE STREET GROUP, LLC, holding approximately 14,599 shares — equal to 134.12% of outstanding shares — as of June 30, 2025.
A total of 5 institutional investors currently hold WINT stock, with a combined institutional value of approximately $8,752 as of the most recent 13F filing period.
Frequently asked questions
WINT ownershipWindtree Therapeutics, Inc. (WINT) is primarily owned by institutional investors, who hold approximately 0.1% of shares. The largest shareholder is JANE STREET GROUP, LLC with a 134.12% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of June 30, 2025.